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Power transmission transformer control system capable of gradable early warning

A technology of transformer and storage, applied in the field of power transmission

Inactive Publication Date: 2016-04-27
曹新民
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Therefore, it is necessary to improve the current transmission transformer control system using the three-ratio method to improve the accuracy and stability of diagnosing power transformer faults and avoid adverse effects caused by misjudgment operations.

Method used

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  • Power transmission transformer control system capable of gradable early warning
  • Power transmission transformer control system capable of gradable early warning
  • Power transmission transformer control system capable of gradable early warning

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Embodiment Construction

[0020] like figure 1 As shown, the transmission transformer control system of the improved three-ratio method of the present invention includes a transmission transformer ECU unit, a storage unit, three detection modules, a three-ratio method coding judgment module and an early warning and display unit, and the three detection modules include a group Concentration detection module, hydrocarbon content detection module, gas production rate detection module. The component concentration detection module, the hydrocarbon content detection module, the gas production rate detection module, and the three-ratio method coding judgment module are connected to the ECU unit to receive control instructions from the ECU unit and to feed back various signals to the ECU unit. The unit is connected with the three-ratio coding judgment module, and the early warning and display unit is responsible for external display processing of the early warning signal output by the ECU unit.

[0021] The c...

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Abstract

A power transmission transformer control system capable of gradable early warning includes a power transmission transformer ECU unit, a storage unit, three detection modules, a three-ratio method coding judgment module, and an early warning and display unit. A component concentration detection module can circularly detect each component concentration of the gases, and compares each concentration value Di with a limiting value Di0 corresponding to the gas component in order. A hydrocarbon content detection module and a gas production rate detection module judge different grades of early warning results through comparison with a numerical relation of a total hydrocarbon content C and a total hydrocarbon absolute gas production rate V of a transformer with the above threshold. The power transmission transformer ECU unit artificially or automatically judges whether three-ratio method coding judgment is needed based on the early warning results. When a three-ratio method operation is needed to judge the fault type, the three-ratio method coding judgment module is started, and a required characteristic gas component value is extracted to judge the corresponding fault type.

Description

technical field [0001] The invention relates to an improved three-ratio method transmission transformer control system, which belongs to the technical field of power transmission. Background technique [0002] With the increase of power equipment capacity and the expansion of power grid scale, higher requirements are put forward for the safe operation and power supply reliability of the power system. The transformer plays an important role in the power system and is one of the most important and expensive electrical equipment in the power system. The safety and reliability of its operation is directly related to the safety and stability of the power system. Therefore, improving the reliability of transformers, especially large-scale power transformers, is of great significance to the safe and reliable operation of the entire power grid. Dissolved gas analysis (DGA) technology in transformer oil has been considered as an effective means to diagnose early faults of power tran...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/12
CPCG01R31/1281G01R31/62
Inventor 不公告发明人
Owner 曹新民
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